A treaty being hammered out this month at the United Nations — with Iran playing a key role — could expose the records of America’s gun owners to foreign governments — and, critics warn, eventually put the Second Amendment on global trial.

International talks in New York are going on throughout July on the final wording of the so-called Arms Trade Treaty, which supporters such as Amnesty International USA say would rein in unregulated weapons that kill an estimated 1,500 people daily around the world. But critics, including the National Rifle Association’s Wayne LaPierre, warn the treaty would mark a major step toward the eventual erosion of the U.S. Constitution’s Second Amendment gun-ownership rights.

Americans “just don’t want the UN to be acting as a global nanny with a global permission slip stating whether they can own a gun or not,” LaPierre said. “It cheapens our rights as American citizens, and weakens our sovereignty,” he warned in an exclusive interview with FoxNews.com from the halls of the UN negotiating chambers.

The world body has already been criticized for appointing Iran to a key role in the talks, even as Tehran stands accused by the UN of arming Syrian President Bashar al-Assad’s bloody crackdown on rebels. The Obama administration in 2009 reversed Bush administration policy by agreeing to take part in the talks. But in another exclusive interview with FoxNews.com, the top government official on the issue under President Bush says he’s seen nothing new to convince him the U.S. should be at the table today.